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Record W2733389540 · doi:10.1093/geroni/igx004.4834

USING A FRAILTY INDEX BASED ON DEFICIT ACCUMULATION

2017· article· en· W2733389540 on OpenAlexaff
Kenneth Rockwood

Bibliographic record

VenueInnovation in Aging · 2017
Typearticle
Languageen
FieldMedicine
TopicFrailty in Older Adults
Canadian institutionsDalhousie University
Fundersnot available
KeywordsFrailty IndexIndex (typography)GerontologyMetric (unit)OperationalizationPsychological resilienceResilience (materials science)PopulationMedicinePopulation ageingPsychologyEnvironmental healthComputer scienceEngineering

Abstract

fetched live from OpenAlex

Frailty as a state of increased risk can be operationalized by a frailty index. It is the proportion of age-related health deficits present in an individual to the deficits counted. As it does not require special instrumentation, existing/routinely collected data can quantify frailty across clinical and population settings. Several electronic frailty indices have been devised, allowing risk to be graded on millions of people. The mean frailty index score varies by regional and national economic indicators, so it is also being used as a population health metric. Despite varying versions, the frailty index characteristically increases by ~4% annually across the adult lifespan, to a maximum value of 0.7. It is used in research to estimate personal biological age and more recently in pre-clinical models. From cellular to social inquiries the metrics of the frailty index can grade clinical risk and can facilitate the study of ageing, resilience and age-related illnesses.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.264
Threshold uncertainty score0.474

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.169
GPT teacher head0.412
Teacher spread0.242 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2017
Admission routes1
Has abstractyes

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